Sökning: "uncracked"

Visar resultat 1 - 5 av 6 uppsatser innehållade ordet uncracked.

  1. 1. Cyclotomic Fields and Fermat's Last Theorem

    Kandidat-uppsats, Lunds universitet/Matematik LTH; Lunds universitet/Matematik (naturvetenskapliga fakulteten)

    Författare :Samuel Runyeon Odeberg; [2021]
    Nyckelord :pure mathematics; number theory; algebra; algebraic number theory; cyclotomic fields; cyclotomic rings; cycltomic integers; Fermat s last theorem; Mathematics and Statistics;

    Sammanfattning : Number theory is in a sense among the oldest disciplines of mathematics. A running theme is that many number theoretic problems are very easy to state and understand. However, actually solving these problems often requires much work or some very clever trick. LÄS MER

  3. 2. Assessing the safety of cracked concrete dams

    Master-uppsats, KTH/Betongbyggnad

    Författare :Abdelsamad Mohamed Osman Fadul; [2021]
    Nyckelord :Buttress dams; Concrete; Global stability; Design criteria; RIDAS; Sliding; Overturning; Finite element analysis; Progressive failure analysis;

    Sammanfattning : AbstractThe overall safety of dams depend on several stipulations. One of them is global stability of the dam, which is addressed with approaches like that in (RIDAS, 2017) (the Swedish power companies’ guidelines for dam safety). When designing a new dam, two global failure modes; sliding and overturning should be considered according to RIDAS. LÄS MER

  4. 3. Dimensionering av betongbeläggning för flygfält

    Uppsats för yrkesexamina på grundnivå, Uppsala universitet/Byggteknik

    Författare :Rasmus Nilsson Strand; [2016]
    Nyckelord :;

    Sammanfattning : There is at present a lack of guidelines for the design of concrete pavements for airfields and thus a need to prepare these. The purpose of this study is to describe the Swedish design principles for the design of both unreinforced concrete slabs joined with dowels and continuously reinforced concrete slabs for use in pavements for airfields and to develop design templates for these types of pavements. LÄS MER

  5. 4. Progressive failure analyses of concrete buttress dams : Influence of crack propagation on the structural dam safety

    Master-uppsats, KTH/Betongbyggnad

    Författare :Chaoran Fu; Bjartmar Hafliðason; [2015]
    Nyckelord :concrete buttress dams; cracked concrete; failure modes; safety factor; finite element analysis; nonlinear material properties; betong; lamelldammar; uppsprucken betong; brottmoder; säkerhetsfaktor; finita element analyser; icke-linjära material modeller;

    Sammanfattning : Concrete buttress dams are the most common type of concrete dams for hydropower production in Sweden. Cracks have been observed in some of the them. However, only limited research has been made concerning the influence of these cracks on the structural dam safety. LÄS MER

  7. 5. Maximering av spännvidd vid ändfack för betongbjälklag i bostäder

    M1-uppsats, KTH/Byggvetenskap

    Författare :Julia Kouriya; Zina Yacob; [2014]
    Nyckelord :concrete; reinforcement; pure bending; cross section; reinforced; unreinforced; cracks; breaks; stage I; stage II; construction; cracking; minimum reinforcement; equivalent concrete section; clean strokes; cracked; uncracked; serviceability limit states.; betong; armering; ren böjning; tvärsnitt; armerat; oarmerat; sprickor; brott; stadium I; stadium II; konstruktion; sprickbildning; minimiarmering; osprucket; böjsprucket; bruksgränstillstånd; ekvivalent betongtvärsnitt; ren drag.;

    Sammanfattning : Dagens samhälle har fått en explosiv utveckling som förverkligar mycket som för bara några år sedan var inte mer än fantasier.  Dagens utvecklingsförsprång ställer oss, byggnadskonstruktörer, inför rejäla utmaningar. Den globala folktillväxten ökar väsentligt vilket leder till tätbefolkade städer. LÄS MER